TABLE 3.
Diatom diversity, richness, and dominant species for biovolumes
| Coating | Mean H′ ± SD |
Mean richness ± SD | Species (% abundance)a |
||
|---|---|---|---|---|---|
| Density | Biovolume | Dominant | Subdominant | ||
| PVC | 1.7 ± 0.2 | 1.2 ± 0.2 | 9 ± 1 | Navicula spp. (59), Licmophora sp. (34) | |
| IT757 | 2.7 ± 0.2 | 2.5 ± 0.4 | 14 ± 5 | Navicula spp. (26) | Nitzschia spp. (21), Cylindrotheca sp. (18), Licmophora spp. (16), Thalassionema sp. (12) |
| SQT | 2.6 ± 0.2 | 1.1 ± 0.4 | 12 ± 1 | Licmophora spp. (75) | Cylindrotheca sp. (18) |
| IS360 | 2.0 ± 0.3 | 2.0 ± 0.5 | 12 ± 5 | Navicula spp. (38), Nitzschia spp. (28) | Thalassionema sp. (14) |
| NEX | 2.0 ± 0.3 | 0.9 ± 0.1 | 11 ± 1 | Thalassionema sp.(85) | |
| SL04A | 2.5 ± 0.1 | 2.0 ± 0.1 | 11 ± 1 | Navicula spp. (36), Licmophora spp. (29) | Nitzschia spp. (18) |
| A3S | 2.3 ± 0.3 | 2.2 ± 0.3 | 10 ± 4 | Licmophora spp. (28) | Nitzschia spp. (24), Cylindrotheca sp. (20), Thalassionema sp. (15) |
a
Dominant species were present at >25% abundance, and subdominant species were present at abundances between 25 and 10%.